Done it for 10 yrs plus
5vs2 possession squares are the basis of all coaching techniques
Every team from under 10 to Barca use them
Start with bigger squares and gradually reduce them
Then move to 6vs 3 etc
At that age all work should be with a ball
Ask the kids to buy their own training ball and you hang on to them
Even fitness training should be done with a ball
Make sure you are never alone , have an assistant to/ parent at every training session
Give a small prize for MOTM and best trainer at every session
Above all make it fun
As was said when they hit 15/16 it’s a nightmare bar they are competing at a high level
Get you basic coaching badges , get advice , get more experienced coaches to do a few sessions
Mix it up , never let it get boring or tedious , have something different every week